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Protein Structures and Oligomeric States

Enter a protein name, UniProt accession or PDB ID. Name searches ask you to confirm the protein identity before related structures are queried.

Current Protein Identity：P75831 New Search
6PDB entries
9Biological assembly
12chain/assembly records
Main Difference Dimensions in This Set
Different construct Different mutation/modification Different assembly state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics

Difference tags compare only the current result set; every original PDB and assembly record remains separate.

Related-Structure Differences

Each row represents one biological assembly in one PDB entry; multiple monomers of the same protein are listed separately.

PDB Entry Assembly / Oligomeric State Construct Mutations and Modifications Ligands, Ions and Non-polymers Experimental Method Experimental Conditions Structure Quality
5LJ8 Structure of the E. coli MacB periplasmic domain (P21) Deposited 2016-07-18 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 309–508（200 aa） Fragment：UNP residues 309-508
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；288 K；30% Pentaerythritol ethoxylate (15/4 EO/OH), 6% polyvinylpyrrolidone, 100mM HEPES pH 7.5
Resolution 1.95 Å R-free 0.228
5LJ8 Structure of the E. coli MacB periplasmic domain (P21) Deposited 2016-07-18 Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain B 309–508（200 aa） Fragment：UNP residues 309-508
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；288 K；30% Pentaerythritol ethoxylate (15/4 EO/OH), 6% polyvinylpyrrolidone, 100mM HEPES pH 7.5
Resolution 1.95 Å R-free 0.228
5LJ9 Structure of the E. coli MacB ABC domain (C2221) Deposited 2016-07-18 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1–223（223 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；288 K；2.8 M sodium formate, 100 mM sodium acetate pH 4.6
Resolution 2.30 Å R-free 0.225
5LJ9 Structure of the E. coli MacB ABC domain (C2221) Deposited 2016-07-18 Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain B 1–223（223 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；288 K；2.8 M sodium formate, 100 mM sodium acetate pH 4.6
Resolution 2.30 Å R-free 0.225
5LJ9 Structure of the E. coli MacB ABC domain (C2221) Deposited 2016-07-18 Assembly 3 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain C 1–223（223 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；288 K；2.8 M sodium formate, 100 mM sodium acetate pH 4.6
Resolution 2.30 Å R-free 0.225
5LJA Structure of the E. coli MacB ABC domain (P6122) Deposited 2016-07-18 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1–223（223 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；288 K；2.6 M sodium formate, 100 mM sodium acetate pH 4.6
Resolution 2.40 Å R-free 0.298
5NIK Structure of the MacAB-TolC ABC-type tripartite multidrug efflux pump Deposited 2017-03-24 Assembly 1 Protein heterocomplex Heteromer；Protein × 11 PDB declaration: undecameric（11） Consistent with protein count
Chain J 1–648（648 aa）
Chain K 1–648（648 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.30 Å
5NIL Structure of the MacAB-TolC ABC-type tripartite multidrug efflux pump-MacB section Deposited 2017-03-24 Assembly 1 Protein heterocomplex Heteromer；Protein × 11 PDB declaration: undecameric（11） Consistent with protein count
Chain J 1–648（648 aa）
Chain K 1–648（648 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 5.30 Å
9QGY Structure of the YbjP lipoprotein bound to the MacAB-TolC tripartite efflux pump Deposited 2025-03-14 Assembly 1 Protein heterocomplex Heteromer；Protein × 14 PDB declaration: 14-meric（14） Consistent with protein count
Chain M 299–507（209 aa）
Chain N 299–507（209 aa）
Not recorded CL CHLORIDE ION × 3 Z41 (2S)-3-hydroxypropane-1,2-diyl dihexadecanoate × 3 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.48 Å

This page presents structural evidence recorded in PDB/mmCIF.“No recorded non-water small molecule” does not prove that the experimental sample was ligand-free; experimental conditions belong to the PDB experiment, while ligands and copy counts are shown for each biological assembly.